diff --git a/main/src/main/scala/sbt/internal/server/LanguageServerProtocol.scala b/main/src/main/scala/sbt/internal/server/LanguageServerProtocol.scala
index 47ac40aee..ce1131d0f 100644
--- a/main/src/main/scala/sbt/internal/server/LanguageServerProtocol.scala
+++ b/main/src/main/scala/sbt/internal/server/LanguageServerProtocol.scala
@@ -39,7 +39,7 @@ private[sbt] trait LanguageServerProtocol extends CommandChannel {
     notification.method match {
       case "textDocument/didSave" =>
         append(Exec(";compile; collectAnalyses", None, Some(CommandSource(name))))
-      case _ => ()
+      case u => log.debug(s"Unhandled notification received: $u")
     }
   }